Downspout Debris Filter - Wall Mount (2X3) (CLASSIC CREAM) The Downspout Debris Filter-Wall mount is designed to be inserted into your downspout to filter the debris coming down your downspout. Available in two outlet sizes for 2x3" & 3x4" downspouts. *****Note that the outlet size for 2"x3" downspout is 2 3/8" round and for 3"x4" downspout is 3 3/8" round***** Ideal for rain water collection. Proudly made in the USA!